Predictably, I got INFJ:
This part of the explanation resonated the most with me:
Although they are happy working at jobs (such as writing) that require solitude and close attention, Counselors do quite well with individuals or groups of people, provided that the personal interactions are not superficial, and that they find some quiet, private time every now and then to recharge their batteries.
I spend my day talking to clients and coworkers, and when I come home I don't want to deal with anybody because even though I didn't dislike the experience at work, I get "peopled out."
I find it interesting that I share these traits with Nelson Mandela, Jane Goodall, Emily Bronte, and Sir Alec Guinness.
ETA: There was another
explanation to click on that I found even more accurate. This, especially:
They are, in fact, sometimes mistaken for extroverts because they appear so outgoing and are so genuinely interested in people -- a product of the Feeling function they most readily show to the world. On the contrary, INFJs are true introverts, who can only be emotionally intimate and fulfilled with a chosen few from among their long-term friends, family, or obvious "soul mates."
This page also lists Carrie Fisher and Geoffrey Chaucer as INFJs.